Flexible bags – Bag having means to facilitate opening it by severing bag... – Including means for reclosing the bag
Patent
1997-01-10
1999-01-05
Pascua, Jes F.
Flexible bags
Bag having means to facilitate opening it by severing bag...
Including means for reclosing the bag
383 66, 383 78, 383209, B65D 3318
Patent
active
058554351
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention is related to an opening and reclosing device for flexible containers, for instance packets of plastic material or the like for bulk food products as well as for powder or liquid products.
These containers, sealed by the manufacturers, are opened for removal of the contents traditionally by cutting or tearing a top portion thereof, and cannot be subsequently closed again adequately so as to prevent or at least limit accidental coming out of the products.
BACKGROUND ART
More particularly, the invention refers to an opening and reclosing device comprising an adhesive flexible member to be applied onto the outer surface of one container wall in correspondence of a die-cut thereof. An opening and reclosing device of this kind is generally known from U.S. Pat. No. 4,874,096 owned by the same Applicant.
DISCLOSURE OF THE INVENTION
The object of the present invention is to provide a simple and cheap opening and reclosing device, which enables both to open the first time the container in a convenient and practical way, and to efficiently reclose the container following each removal of the contents.
A further object of the invention is to provide an opening and reclosing device which can be applied to the container in a simple and mechanized way.
According to the invention, the above objects are achieved by virtue of an opening and reclosing device of the above referenced type, primarily characterized in that the adhesive member comprises a label having an adhesive face intended to be applied over said die-cut area of the container wall, the adhesive face including two side-by-side sections the first of which is intended to detachably overlay the container wall along said die-cut area, and the second of which is constituted by a bi-adhesive strip which is detachable from the label and intended to permanently adhere to the container wall in proximity of said die-cut area.
Due to this idea of solution, the first opening of the container can be performed by the user simply following removal of the adhesive label so as to allow access to the contents through the die-cut area of the container.
As a consequence of the removal of the label, the bi-adhesive strip which remains adherent to the container enables reclosing thereof, following simple folding of an edge portion of the container beyond the die-cut area so as to attach this edge portion over the container by means of the bi-adhesive strip. Following each subsequent re-opening, the container can be readily reclosed in the same way.
Preferably the label is transparent: this allows, through a peculiar design of the die-cut area on the container wall, to provide an immediate visual indication related to the container having been opened at least once. This can be achieved, for instance, forming the die-cut area of the container wall with a number of slits spaced apart from one another and delimiting a releasable strip of a shorter length than the label, with each slit being separated from the adjacent ones through preferential breakage areas. Accordingly, when the container is opened for the first time, the strip delimited by the slits is removed along with the label: when the latter be subsequently re-applied, ready visual indication shall be obtained of the fact that the strip has already been separated from the remainder of the container wall.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be disclosed in detail with reference to the accompanying drawings, purely provided by way of non limiting example, in which:
FIG. 1 is a diagrammatic perspective and partial view of a flexible container provided with an opening and reclosing device according to the invention,
FIG. 2 is a fragmentary and enlarged view of the detail indicated by arrow II in FIG. 1,
FIG. 3 is a cross sectioned and enlarged view along line III--III of FIG. 1,
FIG. 4 is a perspective view showing the opening phase of the container,
FIG. 5 is a view similar to FIG. 4 showing the re-closed condition of the container,
FIG. 6 is a sectioned and enl
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patent: 4428477 (1984-01-01), Cristofolo
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patent: 4709399 (1987-11-01), Sanders
patent: 4838429 (1989-06-01), Fabisiewicz et al.
patent: 4874096 (1989-10-01), Tessera-Chiesa
patent: 4998666 (1991-03-01), Ewan
patent: 5310262 (1994-05-01), Robison et al.
Pascua Jes F.
Sales S.p.A.
LandOfFree
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